We use these yarns to make fabrics. How is it done? Detailed definitions and manufacturing principles for different types of yarns are provided. (ii) Fabric is made from yarn by the process of weaving or knitting. This process is also called warping. Similarly , there are many other fibres available to us, which can be used to make cloth and we will learn about these in the next section. Here, the raw materials that have been harvested and processed are transformed from raw fibers into yarn and threads. Weft is … The fibres of cotton and wool have many folds and uneven surfaces. Spinning can be done both by hands and by machines. Fill in the names of useful items made from jute fibres in Fig. The former, with a number of filaments of around 275, can be converted into a … Important Questions on Fibre to Fabrics. The earliest known samples of yarn and fabric of any kind were found near Robenhausen, Switzerland, where bundles of flax fibers and yarns and fragments of plain-weave linen fabric, were estimated to be about 7,000 years old. Activity 4 Hold some cotton wool in one hand. Natural fibers—cotton, flax, silk, and wool—represent the major fibers available to ancient civilizations. Fiber is the smallest unit of a fabric. The stems rot (the process is called retting) and fibres are separated by hand. By continuing you agree to the use of cookies. Copyright © 2021 Elsevier B.V. or its licensors or contributors. Hi, I am going to write the primary properties essential for a fibre to be spun in to a yarn. For full treatment, see textile: Production of yarn. These fibres are converted into yarns to make … Yarns are made up of a number of fibres twisted together. To make fabric, we have to first convert the cotton fibres into yarns by which of the following process? Question: What are looms? Pinch some cotton between the thumb and forefinger of the other hand. fibres. These fibres are spun into continuous strands called as yarns, by imparting twist. Copyright © 2015 Elsevier Ltd. All rights reserved. Fill in the names of useful items made from jute fibres in Fig. Other cotton fibres and myself were made into yarn by the process of _____. Passage - 2 The process of making yam from fibres is called spinning. The yarn is then woven on a loom to create wool fabric. This is done by spinning the fibers. (d) Sufi saint Kabir was a weaver. This process is known as the spinning of cotton yarns. If weaving is used to make the fabric, the warp yarns are assembled onto a beam. The fibres best suited for textile weaving typically measure between 1 to 1 3/4 inches long; the first destination for these fibres is the carding machine. Making of Fabric, Fibre to Fabric, Class 6. Yarns are the continuous, strands produced from a short and staple fibres. Appropriate yarn structures and manufacturing technologies are selected for required applications and properties. One such example is given. technologies, to form and bond polymers, fibres, filaments, yarns or combination sheets into a flexible, porous structure. Textile - Textile - Conversion to yarn: Because filaments, such as silk and the synthetic fibres, have extreme length, they can be made into yarn without the spinning operation necessary for the shorter staple fibres. • A yarns is a continuous strand made up of a number of fibres which are twisted together 19. 36. Improve your learning 1. In fact, some nonwoven products are subjected to both textile and p aper industry . How is it done? ( most properties in synthetic fibres can be controlled to process them into different types of yarns. We use these yarns to make fabrics. Fibres are first converted into yarn by the process of spinning. To make fabrics, all these fibres are first converted into yarns. They are made from both natural and synthetic fibres. Log in, Concise Mathematics Class 10 ICSE Solutions 2018. A brief treatment of yarn follows. 5. 3.4 SPINNING COTTON YARN. 38. Spinning: The process of making yarn from fibre is called spinning. So they are first converted into yarns which are longer, thicker and stronger. One such example is given. FIBRES Fibres … Fabric is … Fibres are made from the yarns. The fleece is sheared from the sheep, scoured, carded, combed and spun into yarn. The fibres are then further separated in a blending machine; this separates different grades of cotton to be blended, processes and spun into yarn. Filaments may be loosely twisted together to form yarns of a specified thickness. (d) Sufi saint Kabir was a weaver. In the process of spinning, fibres from a mass of cotton (or wool, silk, etc.) These materials vary in their sizes and texture and form a suitable for knitting, weaving or otherwise intertwining to form textile fabrics. Yarns … You can try making cotton yarn yourself. So they are first converted into yarns which are longer, thicker and stronger. The stems rot (the process is called retting) and fibres are separated by hand. Raw jute fibres are red in colour. Spun yarns can contain a single type of fibre, or you can spin various types of fibre together to give you a blend. Solution: (b): In India, jute is mainly grown in West Bengal, Bihar, Assam and Andhra Pradesh. Fibres are thin and small and cannot be made into a fabric directly. There are three basic steps required for fabric production. (c) Spinning (iii) Yarns are made from these thin strands (d) Ginning (iv) These are spun from fibres and then used to make fabrics (e) Fibre (v) Process of arranging two sets of yarns together to make a fabric (f) Yarn (vi) Process of making yarn from fibres 23. Which of the following materials did people use in ancient times for making clothes? Hold some cotton wool in one hand. 3.4 SPINNING COTTON YARN You can try making cotton yar n yourself. 37. The chapter describes different types of yarns in terms of their structures, properties and applications. It may have existed in Egypt as early as 12,000 B.C. 81 Science VI Class converted into yarn. The jute plant is normally harvested at flowering stage. 2. 2. The yarn was _____to give beautiful colours and then_____to get cotton fabric. Fabric are made from yarn by two main processes : 1 Weaving 2 Knitting. Fill in the names of useful items made from jute fibres in Fig. Yarns are usually converted into fabrics, either by weaving or knitting. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. • Opening: This is the basic operation in the spinning of yarn from raw fibres. Yarns are made from both natural and synthetic fibre, in filament or staple form.Filament is fibre of great length, including the natural fibre silk and the synthetic fibres. 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Bobbin is the wooden or plastic reels on which yarn is wound. are drawn out and twisted. 4. There are two forms of yarn: one with a low amount of fibers and one with a high amount of fibers. Cotton has also been cultivated and used to make fabrics for at least 7,000 years. • Jute fibre is obtained from the stem of a jute plant. The fabrics are made from fibres in the following two steps : (i) Fibres are first converted to yarn by the process of spinning. A fibre is a fine hair like strand and is the basic unit of textiles from which we make yarns and then the fabric. (c) To make fabric, the fibres are first converted into yarns. The yarn was _____to give beautiful colours and then_____to get cotton fabric. (i) Leaves of trees (ii) Newspaper (iii) Metal foils (iv) Animal skins and furs (a) (i) … Answer: The devices on which weaving of fabrics takes place are called looms. Which of the following materials did people use in ancient times for making clothes? 39. To be made into fabric, wool undergoes several processes. The strands are twisted to make yarns. At spinning mills, cotton fibres are first converted into different types of yarns At fabric mills, yarns are woven or knitted into fabrics At manufacturing factories, fabrics are cut and sewn into … 1. Processing of a Fibre into Fabric. Other cotton fibres and myself were made into yarn by the process of _____. Pinch some cotton between the thumb an d forefinger of the other hand. Match the terms given in Column I with the statements given in Column II. The longer fibres are made into wool for sweaters and the shorter fibres are spun and woven into woollen cloth. Cotton fibres are converted into several intermediary products before a cotton-containing end-product is produced. A bundle of endless stainless steel fibers can be converted to yarns by textile spinning processes. 1. 6. In spinning, fibre from a mass of cotton or wool are drawn out and twisted. This brings the tiny fibres together to form a long and twisted thread called ‘yarn’. This brings the fibres together to form a yam. That thread which was made of fibres is called yarn. In the case of synthetic continuous-filament yarns, manufacturing methods including melt spinning, wet spinning, dry spinning and gel spinning techniques are explained and different forms of continuous-filament yarns are dealt with, such as flat yarns, textured yarns, bi-component yarns and split tape or film yarns. The first step in creating fabric is yarn production. (a) Use of charkha was popularised by Mahatma Gandhi as a part of the Independence movement (b) In India, jute is mainly grown in Kerala and Punjab (c) To make fabric, the fibres are first converted into yarns (d) Sufi Saint Kabir was a weaver Solution: (b) In India, jute is mainly grown in West Bengal, Bihar and Assam. In this process, fibres from a mass of cotton wool are drawn out and twisted. (i) Leaves of trees (ii) Newspaper (iii) Metal foils The cotton fibres are then converted into rope-like loose strands. The process of arranging two sets of yarns together to make a fabric is called weaving. There are varieties of textile fibres derived from various natural and man-made sources. After many different colours of finest Australian Merino wool fibres have been blended and carded, ring spinning frames twist them into woolen yarns and into the desired fineness. We use cookies to help provide and enhance our service and tailor content and ads. When grouped together in a loose, continuous rope without twist, synthetic filaments are called tow. In case of staple-fibre yarns, manufacturing technologies including ring, rotor, air-jet spinning and Vortex spinning are explained together with the type of yarn structures obtained from the respective technologies and their end-uses. Yarns are woven together to make a fabric. Question 2: Which statement out of the following is incorrect? Fibres are thin and small and cannot be made into a fabric directly. Particular emphasis is given to various types of fancy yarns, which are described with suitable diagrams and detailed explanations of their manufacturing methods. The yarn for the production of woolen loden fabrics is characterized by its bulky and soft appearance. The 2 main processes are weaving and knitting. Weaving / Knitting / making of non wovens Then the yarn is made into fabric. Fragments of cotton fabrics have been found by a… Answer 2 (b) Question 3. Opening is the process of reducing compressed cotton fibres from a bale into smaller-fibre tufts. To make fabrics, all these fibres are first converted into yarns. There are two types of wool yarn that make different fabrics: woolen and worsted. To make fabrics, all these fibres are first converted into yarns. In weaving 2 sets of yarns are interlaced to from the fabric. 35. ↓ The yarns are then used to make fabrics by weaving and knitting. Figure 5 shows the bonding of nonoven fabric. Spinning is the process of converting fibres into yarn by twisting the fibre using various machines. The conventional systems for processing staple fibre into spun yarns are those developed for cotton and wool: opening, carding, drawing, combing, roving and spinning. • The process of removing seeds from cotton wool is called ginning. ACTIVITY 10.1 Spinning is done in the same way as the wicks are made from cotton wool at homes. 3.1. Match the terms given in Column I with the statements given in Column II. Question 3. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. https://doi.org/10.1016/B978-1-84569-931-4.00008-8. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. • Cotton fibres are made from cotton ball. 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